Error example autocomplete , web.Application instance initialized with different loop

[bueltan]

summarized Traceback. ... File "/home/denis/Documents/env_aioreactive/lib/python3.9/site-packages/aiohttp/web.py", line 321, in _run_app await runner.setup() File "/home/denis/Documents/env_aioreactive/lib/python3.9/site-packages/aiohttp/web_runner.py", line 279, in setup self._server = await self._make_server() File "/home/denis/Documents/env_aioreactive/lib/python3.9/site-packages/aiohttp/web_runner.py", line 373, in _make_server self._app._set_loop(loop) File "/home/denis/Documents/env_aioreactive/lib/python3.9/site-packages/aiohttp/web_app.py", line 223, in _set_loop raise RuntimeError( RuntimeError: web.Application instance initialized with different loop

Process finished with exit code 1

Packages Versions

---

aiohttp 3.8.1 aiohttp-jinja2 1.5 aioreactive 0.16.0 aiosignal 1.2.0 async-timeout 4.0.2 attrs 22.1.0 charset-normalizer 2.1.0 expression 2.2.0 frozenlist 1.3.0 idna 3.3 Jinja2 3.1.2 MarkupSafe 2.1.1 multidict 6.0.2 pip 21.3.1 setuptools 60.2.0 typing_extensions 4.3.0 wheel 0.37.1 yarl 1.7.2

[bueltan]

Fix this by removing the loop as an application parameter, also notice some problem with the version installed of "Expression" but leave this for other issue.

async def init(loop: AbstractEventLoop):
    port = os.environ.get("PORT", 8080)
    host = "localhost"
    app = web.Application(loop=loop)
    print("Starting server at port: %s" % port)
    aiohttp_jinja2.setup(app, loader=jinja2.FileSystemLoader("."))
    app.router.add_static("/static", "static")
    app.router.add_get("/", index)
    app.router.add_get("/ws", websocket_handler)
    return app, host, port

def main():
    loop: AbstractEventLoop = asyncio.get_event_loop()
    app, host, port = loop.run_until_complete(init(loop))
    web.run_app(app, host=host, port=int(port))

to :

async def init():
    app = web.Application()
    print("Starting server at port: %s" % port)
    aiohttp_jinja2.setup(app, loader=jinja2.FileSystemLoader("."))
    app.router.add_static("/static", "static")
    app.router.add_get("/", index)
    app.router.add_get("/ws", websocket_handler)
    return app

def main():
    port = os.environ.get("PORT", 5055)
    web.run_app(init(), host="localhost", port=int(port))